Slide fastener



Sept. 14, 1937.v

N. KASE ET AL SLIDE FASTENER Filed Jan. 14, 1936 ATTORNEYI PatentedSept. 14, 1937 SLIDE FASTENER Nathan Kse, New Yrk, and Louis Wagenfeld,

Brooklyn, N. Y., assignors to Glda Corporation of America, New York, N.Y., a corporation of New York Application January 14, 1936, Serial No.59,014

3 Claims.

This invention relates to improvements in fastening devices, and moreparticularly to the kind of slide fastening devices set forth in ourprior Letters Patent No. 2,013,706, granted September In our priorpatent above mentioned, the fastening device shown therein consists of aplural-- ity of slide clip members connected at spaced' distances alonga flexible element. The slide clip members when in use upon the beadededges of the walls of an opening to be closed are intended to be movedto an open position to one end of such. opening with the clip members incontact with each other, but due to the connection of the flexibleelement by the formation of eyes at the inner end of one of the sides ofthe clip members, diiTIculty has been experienced in causing the clipmembers to assume a position in parallel contacting relation for thereason that there was insufficient space between'the eyes of the meetling clips to accommodate the adjacent bends of the exibleelement. Thiscondition resulted in causing the outer ends of the clip members to abutWhile the inner ends assumed a spaced apart 5 relation, thus preventingthe said clip members from assuming a compact uniform, parallelrelation. Therefore, one of the features of the invention resides in anovel construction of clip slide member which when a number of them are0 arranged upon a flexible element at spaced distances therealong,enables the members to assume a maximum compact parallel position oneagainst the other when-the fastening device is in opening position. 5Another feature of the invention is the provision of a slide fasteningdevice composed of a plurality of U-shaped clips having eyes at theterminal ends of one of their legs through which the connecting flexible'element passes and by which the clips are i'lxedly secured to theflexible element, the opposite sides of th eyes being notched toaccommodate the adjacent bends of thejoined portions of the flexibleelement which permits the straight side edges of adjacent clips when thefastening device is in use upon an artielel to be dosed thereby.

Other objects of the invention will appear as lo the followingspe'ccation is read in conjunction with the accompanying drawing', inwhich:

Figure 1 is a front elevational view of the improved fastening device inposition upon a bag.

Figure 2 is an enlarged vertical transverse sectional view on the line2-2 of Figure 1.'

to be moved intoparallel contacting engagement Figure 3 is a verticalsectional view on the line 3 3 of Figure 2.

Figure 4 is a plan view of a plurality of fastening clips showing thesame in intimate contact and looking in the direction of their innerends, the connecting chain being omitted for the sake of clearness.

Figure 5 is a detail perspective view of one of the fastener clips perse, and prior to its attachment to the connecting chain. im

Figure 6 is a plan view of the clip in a flattened condition prior tothe bending of the same to the desired U-shape.

Referring to the drawing by reference characters, the numeral I0designates a bag, pouch, 15

or other like article having an opening to be closed, the walls of themouth of which may be spread apart and are provided with beads I I-IIarranged parallel and in side by side relation. The fastening device isdesignated in its entirety 20 by the letter A and includes a pluralityof U- shaped clip members I2 connected together along one of their sidesby a flexible element in the form of a chain I3. One of the end clips I2and designated at B is tightly secured to the beaded 25 edges II of thearticle I0 and constitutes an an- 'chor clip, Whereas the remaining clipmembers I2 are freely slidable lengthwise of the beaded edges and whenspread out along the beaded edges as shown in dotted lines in Figure 1,they 30 assume equi-distant spaced relation due to the fact'that theclips are respectivelyv connected to l the chain I3 at like spacedintervals. 'I'hus in the operation of the slide fastener, the clips I2pull away from the anchor clip B when it`is de- $5 sired to close theopening in the article Ill and are moved to an open position against theanchor clip B into hunched formation as shown in full lines in Figure 1to facilitate access to the article I0 through the opening therein.

Each of the U-shaped fastener clips I2 isA formed from a single blank ofstiff bendable metal as shown in Figure V6 of the drawing, and the blankis of flat elongated configuration having parallel side edges I4-^I4,rounded ends I 5-I5 45 and a reduced neck I6 adjacent one of the roundedends which is formed by notching or cutting away opposltesides of thematerial as at I 1. The blank is folded upon itself within the rangebetween the dotted lines I8-I8 so as to assume a sub- 60 stantiallyU-shaped cong'uration as shown in Figure 5. The bending of the blankinto U-shape provides a bight portion I9 and spaced legs '20 and 2l.'The notched end of the blank constitutes an extensionoi the leg '2| vandis folded inwardly substantially on the dotted line 22 to provide arestricted mouth at the open end of the U-shaped clip, after which thatportion of the blank beyond the in bend, namely the neck I 6 and theheadA .10 bottoms of the eyes are vof less width to provide ample spacebetween` the eyes when the clips I2 are in bunched position one againstthe other to accommodate the bends or adjacent links ofthe chain at thepoint where the fastener clips are secured to the chain. 'I'his space orgap between adjacent eyes 24 is clearly illustrated in Figures 3 and 4of the drawing, and permit the straight -side edges I4 of adjacentU-shaped clips I2 to atly contact in order that the clips may assume aparallel relation one against the other when moved to their openposition as shown in full lines `in Figure 1 ofv the drawing. The headportions 23 after theeyes are formed imparts the appearance when lookedatI in side elevation, that thev 25 eyes are of the same widththroughout as the body of the clips, thus maintaining the straight sideeffect and forming a continuous uninterrupted appearance when the clipmembers are in hunched open position as seen by reference to Figure 1.

Furthermore, the eyes 24 which serve to'connect the clips to the chainare formed beneath the inwardly bent portions of the legs 2| to positionthe eyes inwardly of the outer face of the legs 2I to avoid anyoutwardly projecting parts-which would make the fastening device bulkyor unsightly. .f i f In Figure 5 of the drawing, there is shown one ofthe clips I2 with'its eye 24 in an open position prior to its beingfinally bent around the fastening chain I3. When the eye is bent to itsfinal position, it lfirmly grips the chain to prevent possible shiftingof the clip relative to the chain.

From the foregoing description, it will be seen that we have provided animprovement over` our 5 prior patent above mentioned in that the clipmembers may be moved into intimate parallel relation with' respect toeach other which affords a maximum opening of the mouth of the articlewhen access to the interior is desired. This irn- 50 proved featurecauses the U-clip members to assume an orderly parallel relation at alltimes and to cause the slack looped portions of the chain to hanggracefully and uniform as shown in Figure 1 when the clip members are inhunched 55 position against the anchor clip B.

Having thus described the invention, what we claim as new and desire tosecure by Letters Patent of the United States, is

; 1.111 an article mangas opening therein,

the walls of which may be spread apart, beads provided on the walls ofsaid opening lengthwise thereof, a fastening device including aiiexiblel element, a plurality of U-'shaped clips slidably 5- embracingsaid beads, eachof said U-shaped clips having the free end of one of itslegs extending inwardly and provided with an eye at the terminal endthereof, the4 flexible element passing through the eyes of the.respective vU-shapedw clips and xedly secured thereto in spacedrelation therealong, and notches provided in the v opposed side edges ofsaid eyes at the outer portions thereof to accommodate the bends in saidl flexible element when the U-shaped clips are 15 moved to a bunchedposition one against the other with portions of the flexible elementbetween said U-shaped clips disposed in loop formation.

2. In an article having an opening therein, the 20 walls of which may be spread apart, `parallely beads provided on the walls of said opening,a slide fastener device includinga plurality of U.shaped clip membersembracing said beads,

the free end of one of the legs of each' U-shaped 25 clip memberextending inwardly, eyesl at the terminal kends o f the inwardlyextending portions of the legs of Ysaid U-shaped clip members, a chainpassing through said eyes, said eyes tightly gripping said lchain at.spaced distances there-.v0

along, said -clip members adapted to be spread out along the beads whenin closing position and adapted to be moved into engagement with eachother when in open position, and notches provided in the ends of saideyes for accommodating 35 certain links of said chain when the clipmembers are in open position to enable the clip members to assumelcontact; with each other in parallel relation with intermediateportions of the chain extending in loop formation. '40

, 3. A Aslide closure device comprising'in combination a plurality ofU-shaped clip members, each of said U-shaped clip members being formedof a single elongated strip of at stii bendable ,material bent uponitself into U-shape, one of I `the legs of each U-shaped clip memberhaving an integral extension portion, an eye formed from the extensionportion and disposed within the. plane of the outer surface of the legon which it is formed, opposed side edges of the extension portion ofeach clip member being notched inwardly of the free end thereof, and aflexible element passing through the eyes of the U-shaped clipl membersand being tightly "gripped thereby4 at 4 spaced distances therealongsubstantially as and for the purpose specified.

NATHAN KASE. LOUIS WIESENFELD.

